Help on Raw in CS2 red blotches on original 350D/ CS2

Discussion in 'Digital SLR' started by Birilac, Sep 1, 2005.

  1. Birilac

    Birilac Guest

    Just starting out in raw. I have Photoshop cs2 withthe canon plug (3.1)
    When I open the canon image (raw) it has a lot of very bright red areas,
    mainly on the white areas of the picture. After adjusting the settings or
    using "auto" the red blotches are still there. However when I save the
    picture as jpg or tiff they are gone and I have a great picture.

    If I open the same raw pic in another program (Rawshooter or Canons own
    Digital Photo pro ) the red blotches are not present.

    The Camera space is set on sRGB as default. I tried to set the camera to
    adobe RGB but there is no change.

    Any help would be appreciated,

    Thanks and regards
    Birilac, Sep 1, 2005
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  2. You say you are using the Canon plugin? I have no experience with it,
    but I can say that Adobe's plugin that comes with CS2 (and can be
    updated online) is superb. I would simply remove the plugin and give it
    a try again to see if the problem returns or not. I suspect it will
    not. My brother shoots Canon RAW and I can open any RAW file he sends
    me without issue.
    Thomas T. Veldhouse, Sep 1, 2005
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  3. Birilac

    Frank ess Guest

    Somewhere in there you'l find a switch that makes the blown highlights
    render as red splotches. Something similar for blocked lowlights, if
    I'm not mistaken.
    Frank ess, Sep 1, 2005
  4. Birilac

    Jeremy Nixon Guest

    You have highlight-clipping warnings enabled. Uncheck the "highlights"
    Jeremy Nixon, Sep 1, 2005
  5. Birilac

    Birilac Guest

    Thanks to all , especially Frank and Jeremy

    Switched off the Highlights clipping warning and all's well

    Thanks again

    Birilac, Sep 2, 2005
  6. All is not well.

    You should leave it on. This how you can tell how well you are
    adjusting for blown high-lights. By the way the dark blue spots are
    telling you where you've plugged the shadows.

    Why are you using ACR if you don't know how it works and what the
    settings are for?

    I would suggest you need to read:

    Real World Camera Raw with Adobe Photoshop CS2 Industrial-Strength
    Production Techniques
    By Bruce Fraser


    "I believe that all government is evil,
    in that all government must necessarily make war upon liberty...

    From "Mencken's Creed"
    H.L. Mencken (1880 -1956)
    John A. Stovall, Sep 2, 2005
  7. Birilac

    Birilac Guest

    Why am I using ACR if I don't know how it works... Simple, to learn how it
    works and in time become proficient.
    When I started using the Pc in 1984 there were a lot of thingies that I did
    not understand both in DOS and within the hardware.Today I am able to make a
    reasonable living from the "old Pc", networking, programing and lecturing.
    I am sure that is how most of us start, including your good self.
    Anyway I will try to get a copy of the book you suggested

    Birilac, Sep 2, 2005
  8. No, I didn't start that way. I read the manual first.


    "I believe that all government is evil,
    in that all government must necessarily make war upon liberty...

    From "Mencken's Creed"
    H.L. Mencken (1880 -1956)
    John A. Stovall, Sep 4, 2005
  9. Birilac

    no one Guest

    Where's the fun in that?
    no one, Sep 8, 2005
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